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一、引言全球笔记本电脑市场销量的火爆增长与无线通信领域的稳定增长,强烈地刺激了移动接入Internet的需求。在现行协议中,通常用来标识Internet主机的IP地址在语义上等价于DNS的FQDN,而且传输层协议如TCP会话时使用了IP地址加端口号。这样,移动主机即使在移动过程中也需拥有一稳定的IP地址,为的是使主机在移动中既能保持连接以实现持续计算,也能与Internet上其他主机、服务器互操作。然而,现行的路由算法多是根据数据包的目的地址来决定其下一
I. INTRODUCTION The rapid growth of global notebook computer market and steady growth in wireless communications have strongly stimulated the demand for mobile access to the Internet. In current protocols, the IP address that is commonly used to identify Internet hosts is semantically equivalent to the FQDN of the DNS, and the transport layer protocols such as TCP sessions use the IP address plus the port number. In this way, the mobile host needs to have a stable IP address even while it is in progress so that the host can keep the connection while moving for continuous calculation and interoperate with other hosts and servers on the Internet. However, the current routing algorithm mostly decides the next one according to the destination address of the packet